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OpenStudy (anonymous):
A block of wood weighing 18 pounds rests on an inclined plane that makes an angle of 60° with the horizontal. To the nearest pound, how much friction force is needed to prevent the block from sliding on the plane?
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OpenStudy (anonymous):
for this use this formula F = W*sin(angle)
OpenStudy (anonymous):
So like F=18sin60?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
Thank you!
OpenStudy (anonymous):
no problem
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